Did they say exactly what was wrong for warranting a full rebuild?

I had my shoulder repaired labrum rotator cuff and socket repair. My tendons where over stretched also so they cut out the tears pulled up and re stitched them together plus I destroyed my socket so I had that complete socket rebuilt I'm looking at at 14-16 week recovery. Im two weeks out and can't take my arm out of this massive sling and have no movement and am not supposed to for one more week. I'm truly feeling I won't know how to move it, it feels different I don't know how to describe it other than uncomfortable. I hope this helps just giving my perspective after 2weeks post surgery next Friday and after I have therapy 3 times a week. I had 3 opinions and all where the same but I payed extra and went to a world renowned shoulder specialist and I am hoping it was worth the money so far it seems like it. Because most refused to touch my should because they claim it was to damaged for my age.

Don't do it. Explore your options, get multiple opinions from top doctors. You will NOT be able to lift even moderate weight with a full replacement. Slainte.

No but I trained with a lad who did
He was v young at the time (in his 30's), took him a solid 6 months to recover but I understand methods are better these days
He was back into weights when he did but never lifted anything that his muscles couldn't lift if that makes sense, i.e. very strict and light weight and no ego bullshido whatsoever